Pump



FIG. 1 is a front elevational view of a pump showing my new design, rearcorresponds;

FIG. 2 is a side elevational view taken from the right of FIG. 1, otherside corresponds;

FIG. 3 is a top plan view of FIG. 1;

FIG. 4 is a bottom plan view of FIG. 1;

FIG. 5 is a section view on line 5--5 in FIG. 2; and,

FIG. 6 is a perspective view thereof.

The ornamental design for a pump, as shown and described.